Blue Screen?!??

Answers

Did you download any mods for the game, and if not, have you patched the game to its latest version? Compatibility issues are abound with this game.

I also find that the patchers should be installed PROGRESSIVELY. My install order is Oblivion -> Oblivion Patch -> Shivering Isles -> Shivering Isles Patch. It occurred to me that the Shivering Isles patcher doesn't patch the regular game because when I went to use the launcher, there were no buttons for quality under options (There should be a very low, low, medium, high, and ultra high, or something to that effect).

Try that and then followup if it's still a problem. Also, try hitting one of the buttons, if you're using a fairly decent system, go with high. If it's kind of low, you might wanna try medium setting.